Create a UI for Python Auto-Login Script with Secure Credentials

I have a Python script that performs automatic login on a supplier website and works perfectly in the backend with logs. I want to create a user-friendly UI for this script so users can see the auto-login process without exposing sensitive data like usernames or passwords.

Requirements:


Popup Login Window:

1. When the button is clicked, a popup window should appear and perform the auto-login on the supplier website.
2. The process should be visible (so the user sees the page loading), but credentials must remain hidden.


Deliverables:

1. Fully functional UI integrated into WordPress.
2. Secure connection between frontend and Python backend script.

Skills Required:

Python (backend scripting)
WordPress development
JavaScript (for popup handling)
Web security